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Product Detailed Parameters
- Description：IC COMPARATOR 4 W/VOLT REF 16DIP
- Series：-
- Mfr：Analog Devices Inc.
- Package：Tube
- Type：with Voltage Reference
- Number of Elements：4
- Output Type：CMOS, TTL
- Voltage - Supply, Single/Dual (±)：2V ~ 11V, ±1V ~ 5.5V
- Voltage - Input Offset (Max)：10mV @ 5V
- Current - Input Bias (Max)：-
- Current - Output (Typ)：0.015mA @ 5V
- Current - Quiescent (Max)：8.5µA
- CMRR, PSRR (Typ)：80dB CMRR, 80dB PSRR
- Propagation Delay (Max)：12µs
- Hysteresis：-
- Operating Temperature：-40°C ~ 85°C
- Package / Case：16-DIP (0.300", 7.62mm)
- Mounting Type：Through Hole
- Supplier Device Package：16-PDIP
- Grade：-
- Qualification：-
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Overview
The LTC1443IN#PBF is an ultralow power quad comparator with a built-in reference, housed in a 16-lead PDIP package. It operates from a single 2V to 11V supply or dual ±1V to ±5.5V supply. The device features less than 8.5µA supply current over temperature and includes an internal reference of 1.182V ±1%. Outputs are TTL/CMOS compatible, capable of sourcing up to 40mA continuously. Propagation delay is typically 12µs at 10mV overdrive.
Feature Summary
- Ultralow quiescent current consumption
- Built-in precision voltage reference
- TTL/CMOS compatible outputs
- Elimination of crowbar switching currents
Applications
- Battery-powered system monitoring
- Threshold detectors
- Window comparators
- Oscillator circuits
Procurement Notes
Verify the specific ordering suffix 'IN' corresponds to the industrial temperature range (-40°C to 85°C) and the 'PDIP' package type as listed in official documentation. Confirm RoHS compliance status through manufacturer datasheets before procurement. Ensure pinout compatibility with existing PCB layouts for 16-lead packages.
Selection Notes
Select this component when low power consumption is critical alongside precise threshold detection. The integrated reference eliminates external resistor networks for setting thresholds. Verify that the required propagation delay and output drive current meet circuit specifications compared to faster or higher-current alternatives.
Part Context
This part belongs to the LTC1443/LTC1444/LTC1445 family of ultralow power quad comparators. While sharing core architecture, the IN variant specifically denotes the industrial temperature grade and PDIP packaging format. It serves as a direct replacement for legacy parts like the MAX924 in pin-compatible designs requiring low power operation.
Replacement Considerations
LTC1443CN#PBF (Commercial Temperature Range)
FAQ
What is the function of Pin 14 on the LTC1443?
Pin 14 is Ground (GND) for the LTC1443 and should be connected to V– for single-supply operation.
Can the reference output drive capacitive loads?
Yes, the reference output can drive a bypass capacitor of up to 0.01µF without oscillation.
